ath79: fix MAC address for senao loader devices

The "mac-base" nvmem-cell-cells size is 1.

Fixes: b2f1c6ed52af ("ath79: qca: remove mac-address-increment")
Signed-off-by: Shiji Yang <[email protected]>

target/linux/ath79/dts/qca9558_allnet_all-wap02860ac.dts

@@ -62,7 +62,7 @@
 &eth0 {
 	status = "okay";
 
-	nvmem-cells = <&macaddr_art_0>;
+	nvmem-cells = <&macaddr_art_0 0>;
 	nvmem-cell-names = "mac-address";
 
 	phy-handle = <&phy5>;

target/linux/ath79/dts/qca9558_watchguard_ap300.dts

@@ -77,7 +77,7 @@
 &eth0 {
 	status = "okay";
 
-	nvmem-cells = <&macaddr_art_0>;
+	nvmem-cells = <&macaddr_art_0 0>;
 	nvmem-cell-names = "mac-address";
 
 	phy-handle = <&phy5>;